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/Linux-v6.1/drivers/net/ethernet/google/gve/
Dgve.h1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT)
4 * Copyright (C) 2015-2021 Google, Inc.
10 #include <linux/dma-mapping.h>
43 #define GVE_DATA_SLOT_ADDR_PAGE_MASK (~(PAGE_SIZE - 1))
131 * which point every other offset is free to be reused.
135 /* Linked list index to next element in the list, or -1 if none */
139 /* `head` and `tail` are indices into an array, or -1 if empty. */
181 * buf_states, or -1 if empty.
186 * buf_states, or -1 if empty.
198 * buf_states, or -1 if empty.
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/Linux-v6.1/drivers/video/fbdev/
Dpxa3xx-gcu.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * pxa3xx-gcu.c - Linux kernel module for PXA3xx graphics controllers
22 #include <linux/dma-mapping.h>
36 #include "pxa3xx-gcu.h"
38 #define DRV_NAME "pxa3xx-gcu"
97 struct pxa3xx_gcu_batch *free; member
100 struct pxa3xx_gcu_batch *running; member
106 return __raw_readl(priv->mmio_base + off); in gc_readl()
112 __raw_writel(val, priv->mmio_base + off); in gc_writel()
118 struct pxa3xx_gcu_shared *shared = priv->shared; \
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/Linux-v6.1/arch/x86/events/intel/
Duncore.h1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/io-64-nonatomic-lo-hi.h>
162 /* event config registers are 8-byte apart */
241 if (offset < box->pmu->type->mmio_map_size) in uncore_mmio_is_valid_offset()
245 offset, box->pmu->type->name); in uncore_mmio_is_valid_offset()
253 return box->pmu->type->box_ctl + in uncore_mmio_box_ctl()
254 box->pmu->type->mmio_offset * box->pmu->pmu_idx; in uncore_mmio_box_ctl()
259 return box->pmu->type->box_ctl; in uncore_pci_box_ctl()
264 return box->pmu->type->fixed_ctl; in uncore_pci_fixed_ctl()
269 return box->pmu->type->fixed_ctr; in uncore_pci_fixed_ctr()
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/Linux-v6.1/drivers/input/serio/
Duserio.c6 * This program is free software; you can redistribute it and/or modify it
8 * the Free Software Foundation; either version 2 of the License, or (at
39 bool running; member
51 * userio_device_write - Write data from serio to a userio device in userspace
57 struct userio_device *userio = id->port_data; in userio_device_write()
60 spin_lock_irqsave(&userio->buf_lock, flags); in userio_device_write()
62 userio->buf[userio->head] = val; in userio_device_write()
63 userio->head = (userio->head + 1) % USERIO_BUFSIZE; in userio_device_write()
65 if (userio->head == userio->tail) in userio_device_write()
69 spin_unlock_irqrestore(&userio->buf_lock, flags); in userio_device_write()
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/Linux-v6.1/Documentation/devicetree/bindings/net/
Dadi,adin.yaml1 # SPDX-License-Identifier: GPL-2.0+
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alexandru Tachici <alexandru.tachici@analog.com>
16 - $ref: ethernet-phy.yaml#
19 adi,rx-internal-delay-ps:
22 internal delay (phy-mode is 'rgmii-id' or 'rgmii-rxid') in pico-seconds.
26 adi,tx-internal-delay-ps:
29 internal delay (phy-mode is 'rgmii-id' or 'rgmii-txid') in pico-seconds.
33 adi,fifo-depth-bits:
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/Linux-v6.1/tools/testing/selftests/media_tests/
Dmedia_device_test.c1 // SPDX-License-Identifier: GPL-2.0
4 * media_device_test.c - Media Controller Device ioctl loop Test
23 * sudo ./media_device_test -d /dev/mediaX
25 * While test is running, remove the device and
26 * ensure there are no use after free errors and
28 * config option for use-after-free error detection.
54 printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]); in main()
55 exit(-1); in main()
59 while ((opt = getopt(argc, argv, "d:")) != -1) { in main()
62 strncpy(media_device, optarg, sizeof(media_device) - 1); in main()
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Dvideo_device_test.c1 // SPDX-License-Identifier: GPL-2.0
4 * video_device_test - Video Device Test
20 * sudo ./video_device_test -d /dev/videoX
22 * While test is running, remove the device or unbind the driver and
23 * ensure there are no use after free errors and other Oops in the
25 * When possible, enable KaSan kernel config option for use-after-free
51 printf("Usage: %s [-d </dev/videoX>]\n", argv[0]); in main()
52 exit(-1); in main()
56 while ((opt = getopt(argc, argv, "d:")) != -1) { in main()
59 strncpy(video_dev, optarg, sizeof(video_dev) - 1); in main()
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/Linux-v6.1/drivers/dma/sh/
Drcar-dmac.c1 // SPDX-License-Identifier: GPL-2.0
3 * Renesas R-Car Gen2/Gen3 DMA Controller Driver
5 * Copyright (C) 2014-2019 Renesas Electronics Inc.
11 #include <linux/dma-mapping.h>
28 * struct rcar_dmac_xfer_chunk - Descriptor for a hardware transfer
43 * struct rcar_dmac_hw_desc - Hardware descriptor for a transfer chunk
56 * struct rcar_dmac_desc - R-Car Gen2 DMA Transfer Descriptor
63 * @running: the transfer chunk being currently processed
80 struct rcar_dmac_xfer_chunk *running; member
97 * struct rcar_dmac_desc_page - One page worth of descriptors
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/Linux-v6.1/Documentation/devicetree/bindings/timer/
Dbrcm,bcm2835-system-timer.txt3 The System Timer peripheral provides four 32-bit timer channels and a
4 single 64-bit free running counter. Each channel has an output compare
6 free running counter values, and generates an interrupt.
10 - compatible : should be "brcm,bcm2835-system-timer"
11 - reg : Specifies base physical address and size of the registers.
12 - interrupts : A list of 4 interrupt sinks; one per timer channel.
13 - clock-frequency : The frequency of the clock that drives the counter, in Hz.
18 compatible = "brcm,bcm2835-system-timer";
21 clock-frequency = <1000000>;
Dsamsung,exynos4210-mct.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/timer/samsung,exynos4210-mct.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
14 global timer and CPU local timers. The global timer is a 64-bit free running
15 up-counter and can generate 4 interrupts when the counter reaches one of the
16 four preset counter values. The CPU local timers are 32-bit free running
17 down-counters and generate an interrupt when the counter expires. There is
23 - enum:
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/Linux-v6.1/drivers/clocksource/
Dtimer-orion.c1 // SPDX-License-Identifier: GPL-2.0
7 * Timer 0 is used as free-running clocksource, while timer 1 is
53 * Free-running clocksource handling.
68 /* setup and enable one-shot timer */ in orion_clkevt_next_event()
87 writel(ticks_per_jiffy - 1, timer_base + TIMER1_RELOAD); in orion_clkevt_set_periodic()
88 writel(ticks_per_jiffy - 1, timer_base + TIMER1_VAL); in orion_clkevt_set_periodic()
124 return -ENXIO; in orion_timer_init()
143 ret = -EINVAL; in orion_timer_init()
149 /* setup timer0 as free-running clocksource */ in orion_timer_init()
189 TIMER_OF_DECLARE(orion_timer, "marvell,orion-timer", orion_timer_init);
Ddw_apb_timer.c1 // SPDX-License-Identifier: GPL-2.0-only
33 /* 1: periodic, 0:free running. */
51 return readl(timer->base + offs); in apbt_readl()
57 writel(val, timer->base + offs); in apbt_writel()
62 return readl_relaxed(timer->base + offs); in apbt_readl_relaxed()
68 writel_relaxed(val, timer->base + offs); in apbt_writel_relaxed()
80 * dw_apb_clockevent_pause() - stop the clock_event_device from running
86 disable_irq(dw_ced->timer.irq); in dw_apb_clockevent_pause()
87 apbt_disable_int(&dw_ced->timer); in dw_apb_clockevent_pause()
100 if (!evt->event_handler) { in dw_apb_clockevent_irq()
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/Linux-v6.1/tools/testing/selftests/cgroup/
Dtest_freezer.c1 /* SPDX-License-Identifier: GPL-2.0 */
32 return -1; in cg_check_frozen()
40 return -1; in cg_check_frozen()
62 int fd, ret = -1; in cg_enter_and_wait_for_frozen()
95 int fd, ret = -1; in cg_freeze_wait()
118 * A simple process running in a sleep loop until being
119 * re-parented.
133 * running processes and freeze it. Then unfreeze it. Then it kills all
169 free(cgroup); in test_cgfreezer_simple()
329 for (i = 9; i >= 0 && cgroup[i]; i--) { in test_cgfreezer_tree()
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/Linux-v6.1/arch/arm/mach-pxa/
Dsmemc.h1 /* SPDX-License-Identifier: GPL-2.0-only */
21 #define SXLCR (SMEMC_VIRT + 0x18) /* LCR value to be written to SDRAM-Timing Synchronous Flash */
31 #define BOOT_DEF (SMEMC_VIRT + 0x44) /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SE…
49 #define MECR_NOS (1 << 0) /* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
50 #define MECR_CIT (1 << 1) /* Card Is There: 0 -> no card, 1 -> card inserted */
58 #define MDREFR_K2FREE (1 << 25) /* SDRAM Free-Running Control */
59 #define MDREFR_K1FREE (1 << 24) /* SDRAM Free-Running Control */
60 #define MDREFR_K0FREE (1 << 23) /* SDRAM Free-Running Control */
61 #define MDREFR_SLFRSH (1 << 22) /* SDRAM Self-Refresh Control/Status */
62 #define MDREFR_APD (1 << 20) /* SDRAM/SSRAM Auto-Power-Down Enable */
/Linux-v6.1/Documentation/admin-guide/mm/damon/
Dreclaim.rst1 .. SPDX-License-Identifier: GPL-2.0
4 DAMON-based Reclamation
7 DAMON-based Reclamation (DAMON_RECLAIM) is a static kernel module that aimed to
9 It doesn't aim to replace the LRU-list based page_granularity reclamation, but
15 On general memory over-committed systems, proactively reclaiming cold pages
20 Free Pages Reporting [3]_ based memory over-commit virtualization systems are
21 good example of the cases. In such systems, the guest VMs reports their free
24 guests could be not so memory-frugal, mainly because some kernel subsystems and
25 user-space applications are designed to use as much memory as available. Then,
26 guests could report only small amount of memory as free to host, results in
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/Linux-v6.1/tools/testing/selftests/powerpc/math/
Dfpu_preempt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
38 int running; variable
40 extern void preempt_fpu(double *darray, int *threads_starting, int *running);
50 preempt_fpu(darray, &threads_starting, &running); in preempt_fpu_c()
64 running = true; in test_preempt_fpu()
85 * r5 will have loaded the value of running. in test_preempt_fpu()
87 running = 0; in test_preempt_fpu()
102 free(tids); in test_preempt_fpu()
Dfpu_signal.c1 // SPDX-License-Identifier: GPL-2.0-or-later
36 int running; variable
38 extern long preempt_fpu(double *darray, int *threads_starting, int *running);
44 mcontext_t *mc = &uc->uc_mcontext; in signal_fpu_sig()
48 if (mc->fp_regs[i] != darray[i - 14]) { in signal_fpu_sig()
70 rc = preempt_fpu(darray, &threads_starting, &running); in signal_fpu_c()
85 running = true; in test_signal_fpu()
108 running = 0; in test_signal_fpu()
124 free(tids); in test_signal_fpu()
/Linux-v6.1/drivers/dma/qcom/
Dhidma.c4 * Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify
8 * only version 2 as published by the Free Software Foundation.
24 * written by Hongjun Chen <hong-jun.chen@freescale.com>.
29 * This program is free software; you can redistribute it and/or modify it
30 * under the terms of the GNU General Public License as published by the Free
46 #include <linux/dma-mapping.h>
95 INIT_LIST_HEAD(&dmadev->ddev.channels); in hidma_free()
110 struct dma_device *ddev = mchan->chan.device; in hidma_process_completed()
122 spin_lock_irqsave(&mchan->lock, irqflags); in hidma_process_completed()
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/Linux-v6.1/include/uapi/linux/
Dmembarrier.h11 * Permission is hereby granted, free of charge, to any person obtaining a copy
31 * enum membarrier_cmd - membarrier system call command
34 * @MEMBARRIER_CMD_GLOBAL: Execute a memory barrier on all running threads.
36 * is ensured that all running threads have passed
38 * user-space addresses match program order between
40 * (non-running threads are de facto in such a
42 * running on the system. This command returns 0.
44 * Execute a memory barrier on all running threads
48 * is ensured that all running threads have passed
50 * user-space addresses match program order between
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/Linux-v6.1/arch/arm/mach-mmp/
Dtime.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-mmp/time.c
10 * 2008-04-11: Jason Chagas <Jason.chagas@marvell.com>
11 * 2008-10-08: Bin Yang <bin.yang@marvell.com>
14 * three match comparators. Timer #0 is used here in free-running mode as
32 #include "addr-map.h"
33 #include "regs-timers.h"
34 #include "regs-apbc.h"
54 while (delay--) in timer_read()
79 c->event_handler(c); in timer_interrupt()
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/Linux-v6.1/include/linux/
Dkvm_dirty_ring.h9 * @dirty_index: free running counter that points to the next slot in
10 * dirty_ring->dirty_gfns, where a new dirty page should go
11 * @reset_index: free running counter that points to the next dirty page
12 * in dirty_ring->dirty_gfns for which dirty trap needs to
14 * @size: size of the compact list, dirty_ring->dirty_gfns
78 * called with kvm->slots_lock held, returns the number of
/Linux-v6.1/fs/btrfs/tests/
Dfree-space-tests.c1 // SPDX-License-Identifier: GPL-2.0
7 #include "btrfs-tests.h"
9 #include "../disk-io.h"
10 #include "../free-space-cache.h"
11 #include "../block-group.h"
24 test_msg("running extent only tests"); in test_extents()
41 return -1; in test_extents()
71 return -1; in test_extents()
76 return -1; in test_extents()
81 return -1; in test_extents()
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/Linux-v6.1/drivers/staging/media/atomisp/pci/
Dia_css_control.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * This program is free software; you can redistribute it and/or modify it
8 * version 2, as published by the Free Software Foundation.
41 * @return Returns -EINVAL in case of any
55 /* @brief Un-initialize the CSS API.
63 * with the exception of ia_css_init which will re-initialize the CSS code,
73 * @return error if called when SP is running.
78 * This function should only be called when the SP is not running, calling it
79 * when the SP is running will result in an error value being returned. }
115 * It will boot the SP hardware and start multi-threading infrastructure.
/Linux-v6.1/samples/bpf/
Dtrace_event_kern.c3 * This program is free software; you can redistribute it and/or
5 * License as published by the Free Software Foundation.
40 char time_fmt1[] = "Time Enabled: %llu, Time Running: %llu"; in bpf_prog1()
43 char fmt[] = "CPU-%d period %lld ip %llx"; in bpf_prog1()
50 if (ctx->sample_period < 10000) in bpf_prog1()
57 bpf_trace_printk(fmt, sizeof(fmt), cpu, ctx->sample_period, in bpf_prog1()
58 PT_REGS_IP(&ctx->regs)); in bpf_prog1()
64 bpf_trace_printk(time_fmt1, sizeof(time_fmt1), value_buf.enabled, value_buf.running); in bpf_prog1()
68 if (ctx->addr != 0) in bpf_prog1()
69 bpf_trace_printk(addr_fmt, sizeof(addr_fmt), ctx->addr); in bpf_prog1()
/Linux-v6.1/Documentation/driver-api/dmaengine/
Dclient.rst8 ``Documentation/crypto/async-tx-api.rst``
11 Below is a guide to device driver writers on how to use the Slave-DMA API of the
19 - Allocate a DMA slave channel
21 - Set slave and controller specific parameters
23 - Get a descriptor for transaction
25 - Submit the transaction
27 - Issue pending requests and wait for callback notification
40 .. code-block:: c
66 .. code-block:: c
79 DMA-engine are:
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